Lock.



W. B. SPARKS dz J. H. SHAW.

LOOK.

APPLICATION FILED MAR. 24, 1906.

Patented June 20,1911.

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LOOK.

APPLICATION FILED MAR. 24, 1906.

Patented June 20, 1911.

5 SHBETS-BHEET 2.

W. E. SPARKS & J. H. SHAW. LOCK.

- APPLICATION FILED MAR.24, 1906.

995,729., Patented June 20,1911.

5 8HEETBSHEET 3.

I Juucnfozd W. B. SPARKS & J. H. SHAW.

LOOK.

APPLICATION FILED MAR. 24. 1906' Patented June 20, 1911-.

5 SHEETSSHEET 4.

W. B. SPARKS & J. H. SHAW.

LOCK.

APPLIOATION FILED MAR.24, 1906.

995,729. Patented June 20,1911.

5 SHEETSSHEET 5.

Wijnem MSQ A swrnmnm E. srnairsmn JOHN. H. SHAW, or New Haven, connnc'rrour, assrenons 'ro saaennr a. oomrm, or NEW HAVEN, connno'rrcur, A conrorwrron or CQNNECTIGUT.

To all whom it may concern:

Be it known that we, WILLIAM E. SPARKS and JOHN H. SHAW, both of the city'and county of New Haven and State of Connecticut, have invented new and useful Improvements in Locks, of which the following is a full, clear, and exact description, when taken in connect-ion with the accompanying drawings, which form a part thereof, and in which- Figure 1- represents a slde'elevation of the escutcheon plate on the inside of the door,

. and which contains the principaloperating Fig. 5, an inner or reverse view of the escutcheon plate on the outside of the door, Fig. 6, a transverse central vertical Section throu h the lock on line 6--6 of Fig. 2, Fig. 7, a ront view of the lock, Fig; 8, atop view of the lock, Fig. 9, a horizontal section through the latch bolt and safety catch on line 9-9 of Fig. 7, Fig. 10, a reverse view of the releasing slide, Fig. 11, a view of the movement plate and operating parts located thereon, Fig. 12, a similar view withsome of thi parts shown in sectionon line 1212 of 1g. 6, Fig. 13, a similar View with theparts in the positions shown in Fig. 3, Fig. 14, a transverse horizontal section through the knobs and spindle, Fig. 15, a detail inner view of apart of the outside escutcheon plate, and the end of the neck of the knob, and Figs. 16 and 17, similar views with the compensating disk in the end of the neck ofthe' knobs'hown in different positions. H

In all figures, similar letters of reference represent like parts.

This invention relates to looks, and has for its object the productionof a lock embodying the several improvements and combinations of parts set forth and claimed hereinafter.

Referring .to the drawings for a more particular description, the parts designated by the letter A represent theescutcheon plate LOCK.

Specification of Letters Patent. Patented June 2Q, 1911,; Application filed March 24, 1906. Serial No. 807,905.

of the lock, adapted to be placed on the inner side of the door, and B represents the escutcheon. plate for thefouter side of the door. I

The t'woescutcheon'platesare secured to- Tgetherand to 'the door as follows: On the inner side of the escutcheon. plate B are sockets'C, internally screw: threaded, for

engagement by screws "D ada tedto pass through corresponding sockets on the in side of the escutcheon plate A and through the door. Sleeves or tubes F extend through the door and fit over the sockets C and E and the screws D. By means-of the screws, 1

the two escutcheon plates at and B are drawn toward each other to fit snugly against'opposite sides of the door. It is only necessaryin order to secure the plates to the door that the requisite number of circular perforations of proper diameter be made in the door, at proper places, to permit the sleeves F to extend through them.

The operating mechanism for the latch bolt is contained in the escutcheon plate A.

on the inside of the door, and is shown mounted on a plate G, which is removable from the escutcheon plate, but'is "secured thereto by means of screws H, or other suit ablemeans. The mounting plate G is provided with a lateral oifset I, at the front edge of which is secured the face plate J, so that the face plate is formed independent of, and is removable from the escutcheonplate with the niountingplateG. By this construction, the operating parts adapted to be mounted on the mounting plate ma be formed of a standard size, while the orm and size of the escutcheon plate to which the mounting plate is secured-may vary. In this manner the same operating parts may be used with any desired 'form of escutcheon plate (without the necessity of fitting them individually to the escutcheon late,) bymerely securing the'mounting p ate to the escutcheon plate. 2 I

K designates a latch belt, which is pivoted to the face plate by means of'a fulcrum pin L, as shown more particularly in Figs'fi and 9. To thelatch bolt iSxpivotally connected by means ofa in M, fat-sliding piece N on the mounting p ate G. The slidtipg piece N is normally held in its 'protrac position (Figs. 2, 3, 9, 11, 12 and 13) by means of a T, so that they Wlll rotate together.

end of the spindle projects through the platemeans of the ofisets or wings V on either of the rotary plates T or U, which form a divided hub operated by the knobs of the lock. The neck of the knob W on the inside of the door is connected by screws directly to the plate U, as shown more particularly in Figs. 6 12, 13 and 14. (The upper plate T is shown removed in Figs. 12 and 13). The spindle X of the knob Y on the outer side of the door is rigidly connected with'the p llalte U (Figs. 6, 12, 13 and 14;) in which; it is free to rotate, and has at its outer end a collar Z which holds the plate U on the spindle, so that as shown more particularly in Fig. 14, upon loosening the screws which secure the plate U to the neck of the knob W, both plates T and U of the hub may be removed with the spindle. By this means, the inside knob is readily detachable from the hub plates that remain secured to the spindle, the other end of which is adapted to be connected with the outside knob. a

In order to provide a ready adjustment of the outside knob which would compensate for any inaccuracy in assemblin the parts of the lock, the neck of the knob 1s provided at its inner end, as shown more particularly in Fig. 15, with a. transverse recess A, in

' which is adapted to fit a sliding disk B,

having a rectangular openin C, elongated as shown in a direction at rig t angles to the line of movement of the disk. A ring or washer D is adapted to fit over and be secured to the inner end of the knob Y and hold the parts in place (Figs. 5 and 14). The squared or; rectangular end of the spindle is adapted to fit into the opening C, and if the spindle is not in exact alinement with the axis of the knob and neck any inaccuracy will be taken up either by the elongated openin C in the disk B, or b the movement 0 the disk B, as suggeste in Figs. 16.

- button E, which, as shown in Figs'l and 6.

is ,on the escutcheon A on the inner side of the door. Secured to the end of the shank by a screw F, or other means, to rotate therewith, is a disk G carrying a stud H, which stud takes into a slot I on the end of a sliding plate J The plate J has two surfaces or bearings K upward 1n the posiwhen the plate is pushed tion shown in F1 3, to bear against the part T of the divi ed hub, to prevent its r05 tation. A flat spring L bears on the sliding plate J "and is secured to the mounting plate by' means of a screw M projecting through a slot N in the sliding plate J, as shown more particularly In Figs. 12 and 13. By this construction, when the turn button E is turned in one position, the part T of the divided hub is prevented from rotation (Figs. 3 and 13), and as the divided hub is rotated by the spindle X, connected as above shown to the outer knob Y the turn button E on the inner side controls the operation of the outer knob. The turning of the button E to the position shown in Figs. 1, 2, +1, 11 and 12 releases the knob to operate the latch through the divided hub plate'T.

O designates a post rotatably mounted on the mounting plate G (Fig. 6) and provided with a rectangular perforation P for the pin or spindle Q ofacylinder-lock R. The cylinder lock B may be of any desired construction and is adapted to be operated by a key S. The rotary post 0 is provided with a plate T, having a straight edge U 1 and a laterally rojecting finger V, which finger is adapte to en ge the extreme end W of the lever P, so at when the post 0 is rotated by the pin Q of the cylinder lock, the finger V will swing the lever P on its pivot to retract the latch bolt K. By this construction the latch bolt may be retracted from the outside by means of the key S when the outside knob Y is locked against rotation by means of the sliding p ate J and turn button E. A. plate X 1s secured by a screw, or other means, to the shank Z of a button A on the escutcheon A on the inner side of the door. The shank Z projects through slots B" and C in the mounting plate G and escutcheon plate A, respectively, sothatthe shank Z and button A and plate X are capable of a limited sliding movement from the position shown in Figs. 2 and 12 to-that'shown in Figs. 3 and 13. The plate X is cut away at D so that when it is in the position shown in Figs. 2 and 12, the plate T and the post 0 may be rotated, but when it is in the position shown in Fi s. 3 and13, the ed e E will engage the e ge U of the plate and prevent the rotation of the latter. The plate X is' provided with a laterally ro'ecting finger F adapted to engage the en VF of the lever P on t e apposite side from the finger V of the plate when the plate X is in the position shown 1n Figs. 3 and 13, so that when the lever P is rotated on itspivot-by means ofthe knob, or upon the retraction of the latch bolt K, the rejection will be engaged by the end a of the lever P and the plate X pushed to its other position shown in Figs. 2 and 12, wherein the plate T is released, so that the plate T and the post 0' may be rotated from the cylinder lock B. This construction enables a person on the inside of the door to lock the latch bolt K against retraction by the operation of the cylinder lock R by merely pushing the button A and sliding the plate X into the position shown in Figs. 3 and 13. 'But if the latch bolt K is retracted by means of the knob, or in the ordinary operation of closing the door, the plate X will be returned to the position shown in 2 and- 12, wherein the plate T is released, so that the latch may be operated from the lock R, as above described. A person'may, therefore, lock the door effectively againstanyone on the outside, but upon going out the ordinary operation of closing the door will release the actuating parts connected with the cylinder lock, as above described, so that the door may be unlocked by the key. The plate X is held from accidental movement by means of a spring G which engagesa finger H of a cover plate 1?, secured by screws J or other means, to the mounting plate G. The cover plate 1 holds the plate T and post 0 in position on the mounting plate G (Fig. 6).

A catch lever K is pivotally mounted on a post L on the mounting plate G, and has one end M normally held by a spring N in engagement with a notch or shoulder O on the sliding piece N of thelatch bolt K (Fig. 13), which engagement prevents the retraction of the sliding piece N and the latch bolt K. The opposite end P of the lever K is adapted to be engaged by a depending stud Q on the lever P so that when the lever P is swung on its pivot (Fig. 1) to retract the latch bolt, the stud Q will engage the end P of the lever K to swing the end M out of engagement with the shoulder O of the sliding plate N. As has already been pointed out, the stud R of the lever P has a limited movement in the opening S in the sliding piece N, so that the lever P is capable of a slight movement on its pivot Q, during which movement it swings the lever K, as above pointed out, before it begins to ,retract the sliding piece N and the latch bolt K. The relations between the stud Q and R and their associated parts are shown in Figs. 12 and 13,:wherein the portion of lever P above the line of the section is indicated by dotted lines.

A releasing slide R is mounted on the sliding piece N and is forked at one end, so that: its prongs S may project through the face plate J on either side of the latch bolt K. The releasing slide R is provided with a slot T through which projects a screw U secured to the sliding piece N. A portion of the releasing slide 3", as shown in Fig. 9, bears against the rear of the screw U on the sliding piece N to which the latch bolt 'K is pivoted, so that when the sliding piece N is retracted'it will retract the releasing slide R at the same'time. Butthe releasing'slide R is capable of retraction independently of the sliding piece N. (See Figs. 3 and 13, in

which latter figure, the releasing slide is indicated in dottedlines) A spring V normally tends to hold'the releasing slide R in its protracted position. On the under side of the releasing slide R is a dependingflug W (shown in Figs. 10, 12 and 13) which is adapted, when the safety catch is in its protracted position (Fig. 12) to engage the end M of the lever K and hold it away from the shoulder 0- of the sliding piece N,

but when the releasing slide R is retracted independently of the sliding piece N and latch bolt K (Fig. 13) the lug W is away from the end M of the lever K so that the end M will-engage with the shoulder of the sliding piece N to prevent its retraction except my means of the lever P, which, as already shown, will disengage the lever K The keeper- X for the lock is provided with an opening Y large enough to admit the latch bolt K when the door is closed, but not the prongs S of the safety catch R so that when the door is closed, the latch bolt K may project through the opening Y of the keeper X but the releasing slide R will be retracted, as shown in Fig. 3 and 13. In this position, as already pointed out, the end M of the lever K will engage the shoulder O on the sliding piece N, and, therefore, the latch bolt is prevented from being retracted by pressure on it directly and can only be retracted through the lever P. By this means, any attempt to force the latch bolt out of its keeper" by inserting a knife, or other article, between the door and door jan b is prevented.

By having the releasing slide R slide, and the latch bolt K rotate on a pivot, the movement of the releasing slide is on a line tangential to the are described by the rotaparts rotated.

Having now described our invention, which may vary in its details without departing from the spirit thereof, What we claim and desire to secure by Letters Patent,-is:-

1. In a lock, the combination with an escutcheon plate;-of a face plate adapted to v be applied to the edge of the door; and a scribed. 35

mounting plate adapted to be secured within said escutcheon plate and carry the operating mechanism for said latch bolt between said escutcheon plate and the side of the door to which said escutcheon plate is attached, substantially as described.

2. In a, lock, the combination with anescutcheon plate; of a face plate adapted to be applied to the edge of the door and separate from the escutcheon plate; a latch bolt projecting through said face plate; and a mounting plate connected to the face plate and adapted to be secured to the escutcheon plate and carry the operating mechanism for said latch bolt between the escutcheon plate and the side of the door to which said plate is attached, substantially as described.

3. In a lock, the combination with a knob; of the knob spindle formed angular in cross section; a plate secured to said knob, capable of a limited sliding movement in a plane tranverse to the axis of said knob and provided with an angular perforation for said spindle, substantially as described.-

4. In a lock, the combination. with a knob; of the knob and. spindle formed angular in cross section; a late secured to said knob capable of a limited sliding movement in a plane transverse to the axis of said knob and provided with a rectangular oblong perforation for said spindle, said perforation being shorter in a direction. of movement of said plate, substantially as de- 5. In a lock, the combination with a knob, having a transverse groove on the end of its neck; a plate adapted to slide in said groove; a rectangular. oblong perforation in said plate with its greater width in a line at ri ht angles to theline of movement of said p ate; and a spindle angular in cross section and of less diameter than the wider sides of said perforation, substantially as described.

6. In a lock, the combination with the latch bolt; ofa device for retracting said latch bolt; a hub or roll-back for actuating said device mounted on the inner escutcheon plate; a knob spindle angular in cross section rigidly secured to said roll-back or hub so that it is incapable of longitudinal or rotary movement independently thereof; and an outer knob having an opening angular in cross section for said spindle and rotatable therewith, substantially as described.

7. In a lock, the combination with the latch bolt; of a device for retracting said latch bolt; a sin le knob spindle; and a divided hub or ro l-back for actuating said device mounted on said knob spindle, both portions of said hub being secured against longitudinal movement on said spindle while one portion is capable of independent rotary movement, substantially as described.

8. In a lock, the combination with the latch bolt; of a device for retracting said latch bolt; a knob spindle; a divided'hub or roll back for'actuating said device, one portion of which-is rigidly secured to said spindle and the other portion to the other'knob; and means for securing said latter port-ion to said spindle againstlongitudinal movement independently thereof, substantially as described.

9. In a lock, the combination with the latch bolt; of a device for retracting saidlatch bolt; a knobv spindle; a dividedhub or roll back-for actuatin said device; one portion of which isrigid y-secured tov said spindle and the other portion to the other knob; means for securing said latter portion and the other portion loosely mounted thereon; and a collar for preventing the loosely mounted portion of said hub from becoming detached from said spindle, substantially as described.

11. In a lock, the combination with the latch bolt; of a device for retracting 'said' latch bolt; a rotary hub for actuating said device; a stop slidable on a line tangential to the are described by the rotation of said hub; operating surfaces on one side ofsaid stop adapted to engage the hub to check its rotation; and a rotary member accessible from the inside of the lock to operate said sliding stop, substantially as described.

12. In a lock, the combination with a pivoted latch bolt; of retract-ing mechanism for said bolt within the lock; a safety catch for preventing the retraction of said bolt disengaged therefrom upon the operation of said retracting mechanism; and a member adapted to disengage said safety catch when protracted adapted'to slide on a line tangential to the arcof rotation of the latch bolt, substantially as described.

13. In a lock, the combination with the casing; ofa latch bolt pivoted insaid casing; a sliding member adapted to actuate said latch bolt; a safety catch for preventing the'retraction of said sliding-member; and a bolt adapted when protracted to disengage said safety catch and adapted to slide on a line tangential tothe arc of rotation. of the latch bolt; substantially as described.

'14. In a lock,'the combination with a casing carrying the operating mechanism adapted to be located on one side of a door; a plate adapted to belocated on-the'oppofrom the inside of the door; mechanism actuated by a -key. from the outside for retracting said latch bolt; means for locking said mechanism against operation operated from the inside; and a device for r eleasing said mechanism uponthe retraction of the latch bolt by said inside knob,substantially as described.

16. In a lock, the combination with the casing; of a latch boltmovable in said 'cas-- ing; a lever pivotedin said casing adapted to retract sald latch bolt; and a plate engaging the free end of said lever rigidly secured to said casing to prevent the lateral displacement of said lever during its movement, substantially as described.

17. In a lock, the combination with a latch bolt, a deadlocking stop therefor, and a slide carried by the latch bolt, the said slide op erating when retracted to release the deadlocking sto and permit the latter to move to its dea ocking position, of key mechanism contained .in a separate case and means whereby the operation of the key will move the deadlocking stop out of the path of the latch bolt and retract the bolt. 18. In a lock, the combination with a bolt and means for retracting same, of a slide connected to and carried by the bolt and having a m vement independent of the latter, the said slide adapted to be held inwardly by contact with the strike plate or 40 keeper when the door is closed, a deadlocking device engaged by the slide and controlled thereby for deadlocking the bolt, and means actuated by the bolt retracting means for moving the deadlocking device to a position to release the bolt.

19. In. a latch, the combination with a bolt and means for retracting same, of a slide connected to and carried by the bolt and having a movement independent there so of, the said slide adapted to be held inwardly by contact with the strike plate orkeeper, a spring normally tending to hold said deadlocking means in a position to dead lock the bolt, the said deadlocking means being moved to'a position to'release the boltby the engagement therewith of the slide when the door is open, and means adapted when operated by the bolt retracting means, to first move the deadlocking device to a positioln to release the bolt and then retract the b0 t.

20. The combinationv with a bolt, of a deadlocking lever, a spring normally tending to hold said lever in a position to dead lock the bolt, a slide connected to and carried by the bolt, but free to have a movement independently of said bolt, the said slide adapted to engage the lever and move it to a position to release the bolt when the door is open and to release said lever when the door is closed, and bolt retracting means adapted when actuated to first move the deadlocking device to release the bolt, and then retract the bolt.

, 21. The combination with a latch bolt, a slide connected to and carried by said bolt, and means for deadlocking the latch bolt, the said means" being actuated by the slide, whereby-the latch bolt will be deadlocked when the slide is in its retracted position and released whenthe slide is in the forward position of itsmovement, and key mechanism for retracting the latch'bolt when the slide is in its retracted or forward positions. 22. The combination with a latch bolt and key mechanism comprising a cylinder and means'connecting the latter and the bolt, of a lever for dogging the bolt when the latter is in locking position, a device carried by the bolt and having a movement independent of the latter for holding the dogging lever'in inoperative position when the door is open, and for releasing it when the door is closed, and means connecting said dogging lever with the key mechanism, whereby the dogging mechanism will be actuated to release the bolt when said key mechanism is actuated.

23. The combination with a latch bolt, and means actuated by the strike plate for automatically dogging the latch bolt when the latter is in its locking position, of key and knob actuated mechanisms for moving the dog outof the path of the bolt and for retracting the bolt,'the said key mechanism comprising a key cylinder and means operatively connecting the latter and the bolt, means for locking the key cylinder against and means for deadlocking the .cylinder of the key mechanism, of a lever for dogging the bolt when the latter is in locking position, and means connecting said dogging lever with the key and knobs mechanisms, whereby the dogging lever will be actuated to release the bolt when either of said mechanisms is actuated.

25. The combination with a latch bolt and means for automatically dogging same when the bolt is in its locking osit1on, of key, and inner and outer kno actuatedmechanism for moving the dogging mechanism out of the path of the bolt for. retracting the bolt, the said key mechanism comprising a key cylinder and means connecting the latter and the bolt, means for preventing t-herotation of the key cylinder and v and adapted to be moved to permit the bolt to be retracted, by the outward movement of the deadlocking slide.

27. The combination with a latch bolt and means for automatically dogging same when the bolt is in its locking position, of key and knob actuated mechanlsm for IIlOVlIl the dogging mechanism out of the path 9 the bolt for retracting the bolt, the sa1d key mechanism comprising a key cylinder and means connecting the latter and the bolt, means for preventing the rotation of the key cylinder and dogging means for the outer knob.

28. The combination with a bolt, a deadlocking device for the same and a slide connected to and carried by the bolt and engaging the dead-locking deyice whereby when said slide is in one ositlon, the deadlocking device will be re eased and be free to rest in its deadlocking position, and when said slide is in its other position it will engage and hold the dead-locking device in its inoperative position, of knob mechanism adapted when actuated to first move the dead-locking device to a position to release the bolt and then retract the latter.

29. The combination with a pivoted latch bolt and its sliding stem, of a slide carried by said stem adapted to be retracted upon the retraction of the latch bolt and capable of independent movement, dead-locklng mechanism adapted to engage said latch bolt to prevent its retraction held from such engagement by the releasing slide when in its protracted position, substantially as described.

30. The combination with a pivoted latch bolt and its slidingstem; of a dead-locking 'lever adapted to prevent the retraction of said stem; longitudinally sliding means carried by said stem and actuated from the strike plate adapted to hold said dead-locking lever in an inoperative position when the door is open, and knob actuated mechanism also engaging said dead-locking lever for releasing same when the knob is turned, substantially as described.

31. The combination with a pivoted latch bolt and its sliding stem; of a dead-locking lever adapted to prevent the retraction of said stem; longitudinally sliding means carried by said stem and actuated from the strike plate adapted to hold said dead-lock-.

ing lever in an inoperative position when .the door is opened, and key actuated mechanism also engaging said dead-locking lever for releasing same when the knob is turned, substantially as described.

32. The combination with a latch bolt, of mechanism .for dead-locking said bolt in its protracted position, key actuated mechanism for releasing said dead-locking mechanism and for retracting said bolt, comprising a key cylinder and a connection with said bolt, and a slide for locking said key cylinder against rotation operated from the inside of the door, substantially as described.

33. In a latch, the combination with a bolt and bolt retracting means, of a projecting slide connected to and carried by the bolt and adapted to be held inwardly by contact with the strike plate or keeper, dead locking means for said bolt, a spring normally tending to hold said dead-locking means in the path of the bolt, the said deadlocking means being moved out ofthe path of the bolt by the engagement therewith of the slide when the door is open, and means adapted when operated by the bolt retracting means to first disengage the deadlocking device from the bolt and then retract the bolt, substantially as described.

34. In a latch, the combination with a latch bolt, and a deadlocking slide connected to and carried by the bolt and adapted to be forced inwardly by the bolt and be retained in such position by the keeper, of deadlocking means always in the path of the bolt when the door is closed, and moved out of the path of the bolt by the outward movement of the deadlocking slide, substantially as described.

35. In a latch, the combination with a latch bolt and a dead lo'ckin slide connected to and carried by'the hot and adapted to be forced inwardly by the bolt and retained in such position by the keeper, of deadlocking means always 1n the path of the bolt when the door is closed, and moved out of the path of the bolt by the outward movement of the deadlocking slide and knob mechanism for disengaging the deadlocking means from the bolt and for retracting the bolt, substantially as described.

36. The combination with a bolt, a deadlocking device for said bolt, and a deadlocking slide connected to and carried by the bolt, of knob mechanism adapted when actuated to first move the deadlocking device from the bolt and then retract the bolt,

substantially as described.

37. The combination with a bolt and means for retracting same, of a deadlockin lever, a spring normally tending to hold said lever in the path of the bolt, a deadlocking slide connected to and carried by the bolt and adapted to engage said lever and hold it out 'of the path of the bolt when the door is open and release said lever when the deadlocking device from the bolt and then retract the bolt, substantially as described.

38. The combination with a casing, a bolt and means for retracting the latter, of a deadlocking lever normally resting with one end in the path of the bolt for deadlocking the latter, and a slide connected to and carl ried by the bolt, and adapted when in its forward position to hold the dogging lever out of the path of the bolt, substantially as described.

In Witness whereof, We have hereunto set our hands, on the 19th day of March, 1906.

WILLIAM E. SPARKS. JOHN H. SHAW. Witnesses:

WILLIAM H. KmsoHNER, KATHRYN M. WALPOLE. 

